In some cases, buying in bulk is going to be your best bet. Particularly, when you’re trying to purchase something that isn’t going to perish on you quickly, you’re more likely to get a good deal if you purchase in bulk. This was something that I was thinking about when I got the maintenance supplies I needed for my new boat.
Rather than buy a bunch of smaller bottles of oil, I decided that I’d be better off if I went ahead and purchased a full-fledged Mercury oil 55 gallon drum. This way, I would have a source of oil for my boat’s maintenance that would last me quite a while. It’s been very useful not having to worry about going out and getting more oil.